Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-03-21
Eur. Phys. J. C 71 (2011) 1614
Physics
High Energy Physics
High Energy Physics - Theory
8 pages, 4 figures, Accepted for publication in Eur. Phys. J. C
Scientific paper
10.1140/epjc/s10052-011-1614-5
We derive the exact Casimir-Polder potential for a polarizable microparticle inside an ideal metal cylindrical shell using the Green function method. The exact Casimir-Polder potential for a particle outside a shell, obtained recently by using the Hamiltonian approach, is rederived and confirmed. The exact quantum field theoretical result is compared with that obtained using the proximity force approximation and a very good agreement is demonstrated at separations below 0.1$R$, where $R$ is the radius of the cylinder. The developed methods are applicable in the theory of topological defects.
Bezerra Valdir B.
de Mello Eugenio R. Bezerra
Klimchitskaya Galina L.
Mostepanenko V. M.
Saharian Aram A.
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